Terminal Device, Communication Method, and Storage Medium

1. A terminal device comprising: a first network interface configured to perform a first wireless communication with a first device coupled to a specified network; a second network interface configured to perform a second wireless communication with a second device; and a processor configured to: select one of the first network interface and the second network interface, the first network interface being selected when it is determined that the second device is not coupled to the specified network, the second network interface being selected when it is determined that the second device is coupled to the specified network, and control the selected one of the first network interface and the second network interface to perform a wireless communication.

2. The terminal device according to claim 1 , wherein the processor is further configured to: before selecting the one of the first network interface and the second network interface, when the first network interface performs the first wireless communication with the first device, control the second network interface to perform the second wireless communication with the second device, when the first network interface is selected, control the second network interface to stop the second wireless communication with the second device, and when the second network interface is selected, control the first network interface to stop the first wireless communication with the first device.

3. The terminal device according to claim 1 , wherein the first network interface is configured to communicate with the specified network via the first device when the first network interface is selected, and the second network interface is configured to communicate with the specified network via the second device when the second network interface is selected.

4. The terminal device according to claim 1 , further comprising: a memory configured to store each of identifiers of each of second devices, wherein the processor is configured to receive an identifier of the second device from the second device, the first network interface is selected when the received identifier is not one of the stored identifiers, and the second network interface is selected when the received identifier is one of the stored identifiers.

5. The terminal device according to claim 1 , wherein the processor is configured to transmit a specified signal using the second wireless communication via the second device, the specified signal requesting a response to a third device that is coupled to the specified network, the first network interface is selected when not receiving the response from the third signal, and the second network interface is selected when receiving the response from the third signal.

6. The terminal device according to claim 1 , wherein the first network interface is selected when not receiving, from the second device, first information indicating that the second device couples to the specified network, and the second network interface is selected when receiving, from the second device, the first information.

7. The terminal device according to claim 6 , wherein the first information is information set to the terminal device for communicating with a device coupled to the specified network.

8. The terminal device according to claim 1 , wherein the first network interface is selected when not receiving, from the second device, second information indicating that the second device does not couple to the specified network, and the second network interface is selected when receiving, from the second device, the second information.

9. The terminal device according to claim 8 , wherein the second information is information set to a device coupled to another network differing from the specified network and identifies each device in the other network.

10. The terminal device according to claim 1 , wherein when the first network interface is selected, the processor is configured to: transfer first data to the first device when a destination of the first data is a device coupled to the specified network, and transfer second data to the second device when a destination of the second data is the second device or a device coupled to another network differing from the specified network.

11. The terminal device according to claim 1 , wherein when the second network interface is selected, the processor is configured to transfer data to the second device.

12. The terminal device according to claim 1 , wherein the specified network is the Internet.

13. A communication method comprising: selecting one of a first network interface and a second network interface of a terminal device, the first network interface being configured to perform a first wireless communication with a first device, coupled to a specified network, the second network interface being configured to perform a second wireless communication with a second device, the first network interface being selected when it is determined that the second device is not coupled to the specified network, the second network interface being selected when it is determined that the second device is coupled to the specified network; and controlling the selected one of the first network interface and the second network interface to perform a wireless communication.

14. A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the computer including a memory, the process comprising: selecting one of a first network interface and a second network interface of a terminal device, the first network interface being configured to perform a first wireless communication with a first device coupled to a specified network, the second network interface being configured to perform a second wireless communication with a second device, the first network interface being selected when it is determined that the second device is not coupled to the specified network, the second network interface being selected when it is determined that the second device is coupled to the specified network; and controlling the selected one of the first network interface and the second network interface to perform a wireless communication.